<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题页</title>
<script src="jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
     $(function(){
       toggleEvent(0);
       var mTitle = $(".menuTitle");
       mTitle.each(function(i){
        $(this).click(function(){
         toggleSlideEvent(i);
         $(this).css("border-bottom","1px #ccccff solid");
        });
       });
     });
     function toggleSlideEvent(i)
     {
      $("ul",".menu1").css("display","none");
      $("ul",".menu1").eq(i).slideDown();
      $(".menuTitle").each(function(){
        $(this).css("border-bottom","0px #ccccff solid");
      });
     }
     function toggleEvent(i)
     {
      $("ul",".menu1").css("display","none");
      $("ul",".menu1").eq(i).css("display","block");
      $(".menuTitle").eq(i).css("border-bottom","1px #ccccff solid");
     }
  </script>
  <style type="text/css">
    .menu1
    {
      border: 1px #CCCCFF solid;
      border-top: 0px;
      width: 160px;
    }
    .menuTitle
    {
      width: 100%;
      height: 26px;
      border-bottom: 0px #CCCCFF solid;
      border-top: 1px #CCCCFF solid;
      text-align: left;
      line-height: 26px;
      cursor: pointer;
    }
    ul
    {
      border: 0px #CCCCFF solid;
      width: 100%;
      margin-left: 0px;
      margin-top: 0px;
    }
    ul li
    {
      height: 36px;
      line-height:36px;
      border: 0px gray solid;
      margin-top: 0px;
      margin-left: 0px;
      padding-left:20px;
      list-style-type:none;
      /*background:url(images/Title.png);*/
    }
    ul li:hover
    {
      height: 36px;
      line-height:36px;
      border: 0px gray solid;
      margin-top: 0px;
      margin-left: 0px;
      padding-left:20px;
      list-style-type:none;
      /*background:url(images/Title.png);*/
      cursor:pointer;
    }
  </style>
</head>
<body>
  <form id="form1" runat="server">
  <div class="menu1">
    <div class="menuTitle">
      TITLE1</div>
    <ul>
      <li>Menu1</li>
      <li>Menu2</li>
      <li>Menu3</li>
      <li>Menu4</li>
      <li>Menu5</li>
    </ul>
    <div class="menuTitle">
      TITLE2</div>
    <ul>
      <li>Menu1</li>
      <li>Menu2</li>
      <li>Menu3</li>
      <li>Menu4</li>
      <li>Menu5</li>
    </ul>
    <div class="menuTitle">
      TITLE3</div>
    <ul>
      <li>Menu1</li>
      <li>Menu2</li>
      <li>Menu3</li>
      <li>Menu4</li>
      <li>Menu5</li>
    </ul>
  </div>
  </form>
</body>
</html>